Nanosphere Concentrated Photovoltaics with Shape Control

Date

2020-12-01

Author

Esmaeilzad, Nasim Seyedpour
Demir, Ahmet Kemal
Hajivandi, Jamileh
Ciftpinar, Hande
Turan, Raşit
KURT, HAMZA
Bek, Alpan

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Dielectric colloidal nanospheres (NSs) are promising candidates for light management in photonic devices such as solar cells (SCs). NS arrays can direct the broad incident solar radiation into a set of tighter foci, at which light intensity becomes considerably concentrated, enabling higher photovoltaic conversion efficiency. Furthermore, the NS arrays acting as an effective medium on the SC surface can reduce reflectance and facilitate improved forward scattering. Therefore, uniform arrays of NSs located on top of the SC can behave as antireflection coatings or as microlenses, which can be regarded as a surface distributed light concentrator within the framework of concentrated photovoltaics. Fabrication of NS-based light-trapping structures is low-cost and less complicated than common alternatives such as vacuum evaporated multilayer antireflection coatings. In this work, experimental demonstration and computational confirmation on the shape adjustment of such NS structures for improved light harvesting and efficiency enhancement in Si SCs are studied. The light conversion efficiency of Si solar cells is shown to improve by more than 27% with shape adjustment of NS arrays.

URI

https://hdl.handle.net/11511/69747

Journal

ADVANCED OPTICAL MATERIALS

DOI

https://doi.org/10.1002/adom.202000943

Collections

Department of Physics, Article

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Citation Formats

N. S. Esmaeilzad et al., “Nanosphere Concentrated Photovoltaics with Shape Control,” ADVANCED OPTICAL MATERIALS, pp. 0–0, 2020, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/69747.